CN114102962A - SPC in-mold composite co-extrusion foaming floor mold - Google Patents
SPC in-mold composite co-extrusion foaming floor mold Download PDFInfo
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- CN114102962A CN114102962A CN202111356099.5A CN202111356099A CN114102962A CN 114102962 A CN114102962 A CN 114102962A CN 202111356099 A CN202111356099 A CN 202111356099A CN 114102962 A CN114102962 A CN 114102962A
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- mold
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- 238000005187 foaming Methods 0.000 title claims abstract description 65
- 238000001125 extrusion Methods 0.000 title claims abstract description 21
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 230000005489 elastic deformation Effects 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 12
- 238000005452 bending Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000004113 Sepiolite Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/585—Moulds with adjustable size of the mould cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
- B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/24—Making multilayered articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of SPC co-extrusion foaming molds, in particular to an SPC in-mold composite co-extrusion foaming floor mold; the device comprises an upper template, a middle lower template and a lower template, wherein an upper runner is arranged between the upper template and the middle upper template, a middle runner is arranged between the middle upper template and the middle lower template, a lower runner is arranged between the middle lower template and the lower template, the upper runner and the lower runner are both provided with a current limiting section and a current stabilizing section near the discharge port end, the current limiting section is provided with a flow blocking rod adjusting device, and the current stabilizing section is provided with a non-foaming layer thickness adjusting device; according to the invention, the flow-resisting rod adjusting device is arranged on the flow-limiting section and is used for adjusting the flow and the flow velocity of the non-foaming material in the upper flow channel and the lower flow channel to be uniform, so that the uniform thickness of the upper non-foaming skin layer and the lower non-foaming skin layer is realized, and after the non-foaming skin layer is cut into long SPC floors, the deformation and bending caused by the non-uniform skin layer are avoided, the product percent of pass is improved, and the product quality is ensured.
Description
Technical Field
The invention relates to the technical field of SPC co-extrusion foaming molds, in particular to an SPC in-mold composite co-extrusion foaming floor mold.
Background
SPC stone plastic floor is a novel energy-concerving and environment-protective novel material, and density is about 2.0g/cm3, and formaldehyde-free, dampproofing and waterproofing are mothproof, and the construction is simple swift convenient, but also can retrieve and recycle, receives the market deeply and likes. Mainly for chambersAnd (5) finishing the inner ground. The production technology is introduced in China in recent years, and the advantages of China manufacture quickly occupy the market of Europe and America. Many domestic tools and home furnishings begin to use the SPC stone plastic floor, but most markets are still in Europe and America. Because the shipping price is expensive and calculated according to tonnage, the market demands an SPC foamed sepiolite floor with three-layer co-extrusion of A/B/A, the density of which is 1.3g/cm3And the weight of the same product is reduced by one third.
The mould and the method process for manufacturing the SPC co-extrusion foaming floor at present in China are as follows (as shown in figure 1): 1, the outer part of the die is well distributed and compounded by a distributor 2, then the die is placed in the die and is unfolded and molded by a clothes hanger type flow channel 3, the upper leather layer and the lower leather layer are not uniform due to the rheology of materials in the unfolding and molding process of the clothes hanger type flow channel, and after a product is made, the SPC floor which is cut into long strips is deformed and bent.
Disclosure of Invention
The purpose of the invention is: overcome not enough among the prior art, provide a compound foaming floor mould altogether in SPC mould, adopt this mould can realize that the cortex is even after the cortex goes out the die orifice with the hypodermis on crowded foaming layer altogether, simultaneously, the not foaming layer thickness adjusting device before the die orifice can adjust the different thickness on not foaming layer about as required, the commonality is strong.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an SPC in-mold composite co-extrusion foaming floor mold comprises an upper mold plate, an intermediate lower mold plate and a lower mold plate, wherein an upper runner is arranged between the upper mold plate and the intermediate upper mold plate, an intermediate runner is arranged between the intermediate upper mold plate and the intermediate lower mold plate, a lower runner is arranged between the intermediate lower mold plate and the lower mold plate, the feed port ends of the upper runner and the lower runner are connected with a second extruder (commonly called auxiliary machine) through a non-foaming layer feed runner, the feed port end of the intermediate runner is connected with a first extruder (commonly called main machine) through a foaming layer feed runner,
the upper flow passage and the lower flow passage are both provided with a current limiting section and a flow stabilizing section near the discharge port end, the current limiting section is provided with a flow blocking rod adjusting device, and the flow stabilizing section is provided with a non-foaming layer thickness adjusting device.
Furthermore, choked flow stick adjusting device includes regulating block one, regulating block two, adjusting screw and choked flow stick, regulating block one and regulating block two are fixed in on cope match-plate pattern or the lower bolster through locking screw one, inside adjusting screw runs through regulating block one and the setting of regulating block two and the bottom stretches into the choked flow stick, and adjusting screw's top is adjusting nut, and the choked flow stick is connected to the bottom, it has the lead screw to prevent changeing spacing square to still design on the lead screw, spacing square is located the centre of regulating block one, seted up spacing square groove in regulating block one, the highly is greater than the thickness of spacing square on the adjusting screw. When the adjusting nut rotates in the circumferential direction under the action of external force, the adjusting nut only rotates in the circumferential direction and does not move in the axial direction because of the axial limitation of the adjusting block II, and the adjusting screw rod is limited by the circumferential rotation of the adjusting block I, does not rotate in the circumferential direction and only moves in the axial direction to push or pull the local part of the flow blocking rod so as to adjust the local gap of the flow limiting section and achieve the effect of adjusting the flow speed and the flow of the molten plastic in the flow limiting section.
Furthermore, the height of the limiting block groove is 15-20 mm.
Further, the thickness adjusting device of the non-foaming layer comprises an adjusting plate, an adjusting screw hole is formed in the adjusting plate, a hollow adjusting screw is connected in the adjusting screw hole, a locking screw II is connected in the hollow adjusting screw and is connected with the upper template or the lower template through the locking screw II, and the elastic deformation part is arranged at the position, corresponding to the steady flow section, of the upper template or the lower template.
Furthermore, the second locking screw is an M16 hexagon socket head cap screw, and the hollow adjusting screw is an M32 x 2 screw.
Furthermore, the steady flow section is a shuttle-shaped cavity, the elastic deformation part is provided with an inclined U-shaped groove, and the bottom of the U-shaped groove is parallel to the edge of the cavity.
Further, the distance between the bottom of the U-shaped groove and the shuttle-shaped cavity is 7-10 mm.
Furthermore, the upper template, the middle lower template and the lower template are connected through hexagon socket head cap screws.
Furthermore, the upper runner, the middle runner and the lower runner are all clothes hanger type runners.
The technical scheme adopted by the invention has the beneficial effects that:
according to the invention, the upper template, the middle lower template and the lower template are arranged, the upper runner, the middle runner and the lower runner are arranged, the middle runner flows foaming materials, the upper runner and the lower runner flow non-foaming materials, and the flow choking rod adjusting device is arranged at the flow limiting section and is used for adjusting the flow and the flow velocity of the non-foaming materials in the upper runner and the lower runner to be uniform, so that the uniform thickness of the upper non-foaming skin layer and the lower non-foaming skin layer is realized, after a product is made, the SPC floor which is cut into long strips cannot deform and bend, the product qualification rate is improved, and the product quality is ensured. Simultaneously through setting up not foaming layer thickness adjusting device, can adjust the thickness of not foaming cortex from top to bottom to the realization is to the commonality of different thickness products, and the commonality is stronger.
Drawings
FIG. 1 is a schematic structural diagram of an SPC outer mold composite co-extrusion foaming mold.
FIG. 2 is a schematic structural diagram of an SPC in-mold composite co-extrusion foaming floor mold in the invention.
Fig. 3 is a partially enlarged view of a in fig. 2.
Fig. 4 is a partially enlarged view of B in fig. 2.
In the figure: the device comprises a die 1, a distributor 2, a runner 3, a runner 4, a runner 5, a runner 6, a lower die 7, a runner 8, a runner 9, a runner 10, a flow blocking rod adjusting device 11, an adjusting nut 1101, an adjusting screw rod 1102, a 1103 adjusting block II, a 1104 adjusting block I, a 1105 locking screw I, a 1106 flow blocking rod, a 12 non-foaming layer thickness adjusting device, a 1201 hollow adjusting screw, a 1202 locking screw II, a 13 non-foaming layer feeding flow passage opening, a 14 foaming layer feeding flow passage opening and a 15 elastic deformation part.
Detailed Description
The SPC in-mold composite co-extrusion foaming floor mold of the invention is further described with reference to the specific embodiments.
Referring to fig. 2-4, an SPC in-mold composite co-extrusion foaming floor mold includes an upper mold plate 4, an intermediate upper mold plate 5, an intermediate lower mold plate 6, and a lower mold plate 7, wherein the upper mold plate 4, the intermediate upper mold plate 5, the intermediate lower mold plate 6, and the lower mold plate 7 are connected by hexagon socket head cap screws; an upper runner 8 is arranged between the upper template 4 and the middle upper template 5, a middle runner 9 is arranged between the middle upper template 5 and the middle lower template 6, a lower runner 10 is arranged between the middle lower template 6 and the lower template 7, the upper runner 8, the middle runner 9 and the lower runner 10 are all clothes hanger type runners, the feed inlet ends of the upper runner 8 and the lower runner 10 are connected with a second extruder through a non-foaming layer feed runner opening, the feed inlet end of the middle runner 9 is connected with a first extruder through a foaming layer feed runner opening,
the upper flow passage 8 and the lower flow passage 10 are both provided with a current limiting section and a steady flow section near the discharge port end, the current limiting section is provided with a flow blocking rod adjusting device 11, and the steady flow section is provided with a non-foaming layer thickness adjusting device 12.
According to the invention, the upper template 4, the middle upper template 5, the middle lower template 6 and the lower template 7 are arranged, the upper runner 8, the middle runner 9 and the lower runner 10 are arranged, the foaming material flows in the middle runner 9, the non-foaming material flows in the upper and lower runners 8 and 10, and the flow-resisting rod adjusting device 11 is arranged in the flow-limiting section and is used for adjusting the flow and the flow velocity of the non-foaming material in the upper and lower runners 10 to be uniform, so that the uniform thickness of the upper and lower non-foaming skin layers is realized, after a product is made, the long SPC floor cut into strips cannot deform and bend, the product qualification rate is improved, and the product quality is ensured. Meanwhile, the thickness of the upper and lower non-foaming skin layers can be adjusted by arranging the non-foaming layer thickness adjusting device 12, so that the universality of products with different thicknesses is realized, and the universality is stronger.
In this embodiment, the choke rod adjusting device 11 includes a first adjusting block 1104, a second adjusting block 1103, an adjusting screw 1102 and a choke rod 1106, the first adjusting block 1104 and the second adjusting block 1103 are fixed on the upper mold plate 4 or the lower mold plate 7 by a first locking screw 1105, the adjusting screw 1102 penetrates through the first adjusting block 1104 and the second adjusting block 1103 and the bottom of the adjusting screw extends into the choke rod, the top end of the adjusting screw 1102 is an adjusting nut 1101, the bottom end of the adjusting screw is connected with the choke rod 1106, the screw is further designed with a screw movement limiting block, a square limiting groove is formed in the first adjusting block 1104, the height of the square limiting groove is greater than the thickness of a block on the adjusting screw, when the adjusting nut 1101 rotates, a counter bore in the second adjusting block 1103 limits the adjusting nut 1101 from moving axially, the adjusting screw 1102 moves axially to adjust a local gap between the choke rod 1106 and a flow channel, thereby adjusting the flow rate, because the adjusting screw 1102 is provided with the movement limiting block, and a limiting square groove is arranged in the first adjusting block 1104, and the height of the limiting block groove is limited, so that the accurate control of the stroke of the adjusting screw 1102 is realized, and the control efficiency and accuracy of the flow are further improved.
The thickness adjusting device 12 of the non-foaming layer in the embodiment comprises an adjusting plate, the adjusting plate is connected with the upper template 4 or the lower template 7 through a bolt, an adjusting screw hole is formed in the adjusting plate, a hollow adjusting screw 1201 is connected in the adjusting screw hole, a locking screw 1202 is connected in the hollow adjusting screw 1201 and is connected with the upper template 4 or the lower template 7 through the locking screw 1202, the elastic deformation part 15 at the position corresponding to the steady flow section on the upper template 4 or the lower template 7 is provided, the small die opening is pressed by a user of the hollow adjusting screw 1201, the hexagon socket head cap screw is used for hanging the large die opening, the elastic deformation part 15 of the steady flow section is deformed, the adjustment of the flow of the steady flow section is realized, and the adjustment of the thickness of the upper and lower non-foaming skin layers is controlled. By adopting the structural design, the thickness adjusting efficiency of the upper and lower non-foaming skin layers is higher, and the installation and the disassembly of the adjusting device are more convenient. Specifically, the second locking screw 1202 is an M16 hexagon socket head cap screw, and the hollow adjusting screw 1201 is an M32 x 2 screw.
Specifically, the steady flow section is a shuttle-shaped cavity, the elastic deformation part 15 is provided with an inclined U-shaped groove, the bottom of the U-shaped groove is parallel to the edge of the cavity, the distance between the bottom of the U-shaped groove and the shuttle-shaped cavity is 7-10mm, preferably 8mm, and by adopting the structural design, the flow regulation efficiency in the steady flow section is higher, and the accuracy is higher.
The working principle is as follows: the second extruder extrudes the non-foaming material into the upper runner 8 and the lower runner 10 respectively, the first extruder extrudes the foaming material into the middle runner 9, the non-foaming material flows through the upper and lower runners, the flow and the flow speed of the upper and lower runners can be controlled to be uniform by the flow-resisting rod adjusting device 11, and the uniform skin layer can be realized after the upper and lower skin layers are discharged from the die orifice. Meanwhile, the adjusting device in front of the die opening can adjust the different thicknesses of the upper and lower non-foaming skin layers according to the requirements.
The width of a general SPC mold in the market is 1050mm, the produced product is cut about 970mm after being cut, and then the product is cut into about 190mm long-strip unlocking buckling grooves to be made into a finished product foaming floor.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative examples, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment contains only one independent claim, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a compound foaming floor mould altogether in SPC mould which characterized in that: comprises an upper template, an intermediate lower template and a lower template, wherein an upper runner is arranged between the upper template and the intermediate upper template, an intermediate runner is arranged between the intermediate upper template and the intermediate lower template, a lower runner is arranged between the intermediate lower template and the lower template, the feed port ends of the upper runner and the lower runner are connected with a second extruder through a non-foaming layer feed runner, the feed port end of the intermediate runner is connected with a first extruder through a foaming layer feed runner,
the upper flow passage and the lower flow passage are both provided with a current limiting section and a flow stabilizing section near the discharge port end, the current limiting section is provided with a flow blocking rod adjusting device, and the flow stabilizing section is provided with a non-foaming layer thickness adjusting device.
2. The SPC in-mold composite co-extrusion foaming floor mold as recited in claim 1, wherein: the choked flow stick adjusting device includes regulating block one, regulating block two, adjusting screw and choked flow stick, regulating block one and regulating block two are fixed in on cope match-plate pattern or the lower bolster through locking screw one, inside adjusting screw runs through regulating block two and regulating block one and the bottom stretches into the choked flow stick, and adjusting screw's top is adjusting nut, and the choked flow stick is connected to the bottom, it prevents changeing spacing square to still design the lead screw on the lead screw, spacing square is located the centre of regulating block one, division spacing square groove has been seted up to regulating block one, the height in spacing square groove is greater than the thickness of spacing square on the adjusting screw.
3. The SPC in-mold composite co-extrusion foaming floor mold as recited in claim 2, wherein: the height of the limiting groove is 15-20 mm.
4. The SPC in-mold composite co-extrusion foaming floor mold as recited in claim 1, wherein: the non-foaming layer thickness adjusting device comprises an adjusting plate, an adjusting screw hole is formed in the adjusting plate, a hollow adjusting screw is connected in the adjusting screw hole, a locking screw II is connected in the hollow adjusting screw and is connected with the upper template or the lower template through the locking screw II, and the elastic deformation part is arranged at the position, corresponding to the steady flow section, of the upper template or the lower template.
5. The SPC in-mold composite co-extrusion foaming floor mold as recited in claim 4, wherein: the second locking screw is an M16 hexagon socket head cap screw, and the hollow adjusting screw is an M32 x 2 screw.
6. The SPC in-mold composite co-extrusion foaming floor mold as recited in claim 4, wherein: the flow stabilizing section is a shuttle-shaped cavity, the elastic deformation part is provided with an inclined U-shaped groove, and the bottom of the U-shaped groove is parallel to the edge of the cavity.
7. The SPC in-mold composite co-extrusion foaming floor mold as recited in claim 6, wherein: the distance between the bottom of the U-shaped groove and the shuttle-shaped cavity is 7-10mm, and different skin layer thicknesses are changed by elastic deformation of the U-shaped groove.
8. The SPC in-mold composite co-extrusion foaming floor mold as recited in claim 1, wherein: the upper template, the middle lower template and the lower template are connected through hexagon socket head cap screws.
9. The SPC in-mold composite co-extrusion foaming floor mold as recited in claim 1, wherein: the upper runner, the middle runner and the lower runner are all clothes hanger type runners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111356099.5A CN114102962A (en) | 2021-11-16 | 2021-11-16 | SPC in-mold composite co-extrusion foaming floor mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111356099.5A CN114102962A (en) | 2021-11-16 | 2021-11-16 | SPC in-mold composite co-extrusion foaming floor mold |
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| CN114102962A true CN114102962A (en) | 2022-03-01 |
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| CN202111356099.5A Pending CN114102962A (en) | 2021-11-16 | 2021-11-16 | SPC in-mold composite co-extrusion foaming floor mold |
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